Mechanism for winding bobbins



- 2'SheetsSheet 1. (No Model.)

C. DANCE]... MECHANISM FOR WINDING BOBBINS.

No. 420,441, Patented Feb. 4, 1890.

N. PETGRS. Plmlo-Ulhugmphun WaIluingtv-m. O. C,

2' Sheets-Sheet 2.

(No Model.) 0. DANOEL.

MEGHANISM FOR WINDING BOBBINS. No. 420,441. Patented Feb. 4, 1890.

MMMMHMHHEMIHAIM UNITED STATES PATENT OFFICE.

CHRISTIAN DANOEL, OF NEIV YORK, N. Y., ASSIGNOR TO JONATHAN MUNYAN, OF,\VOROESTER, MASSACHUSETTS.

MECHANISM FOR WINDING BOBBINS.

SPECIFICATION forming part of Letters Patent No. 420,441, dated February 4, 1890.

Application filed December 11, 1888. Serial No. 293,245. (No model.)

To all whom it may concern.-

Be it known that I, CHRISTIAN DANoEL, of New York city, in the county of New York, and in theState of New York, have invented certain new and useful Improvements in Mechanism for Winding Bobbins; and I do hereby declare that the following is a full,

clear, and exact description thereof, reference being had to the accompanying drawings, in which- Figure 1 shows a plan view of my bobbinwinding mechanism as arranged in connection with the actuating or driving devices of a sewing-machine; Fig. 2, a view of the same in front elevation; Fig. 3, a view of the same in side elevation; Fig. 4, a sectional view 011 line 00 a: of Fig. 1. Fig. 5 is a detail view of a modified form of adjustment for the rollers, and Fig. 6 shows a transverse section of the worm and shaft.

Letters of like name and kind refer to like parts in each of the figures.

The object of my invention is to provide certain improvements in automatic bobbinwinding mechanism adapted to wind upon the bobbin a certain predetermined amount; and to this end my invention consists in the bobbin-winding mechanism, and in the construction, arrangement, and combination of parts thereof, as hereinafter specified.

In my application Serial No. 281,556, for United States patent, now pending, I show, describe, and claim a sewing-machine for sewing boots and shoes, in which a bobbin is used having upon it a quantity of thread just sufficient complete the sewing, my winding mechanism is made adjustable, so that it can be readily set to wind any predetermined amount before it stops or is thrown out of action. Vhile it is intended for use in connection with my sewing-machine, as set forth in my said'pending,application, it can be made use of to advantage wherever or whenever it is desired to wind upon abobbin, spool, reel, or

roller a certain length or lengthsof thread, cord, yarn, or other material.

In the drawings, A designates a table or bed-plate 'upon which the winding mechanism is supported. As shown, it is of the shape and construction of the sewing-machine bedplate set forth in my said pending application; but this is of course not necessary. Any

suitable frame or supporting-plate can beperforms no function, and the wheel can have a plane periphery.

Upon the swinging frame D, pivoted to plate A by means of the vertical pivot D, is the roller or wheel E, rotating upon a horizontal axis. This wheel can be supported on the frame D in any desirable way; but I prefer to provide it, as indicated in the drawings, with a short shaft E projecting from one side of it and journaled in a bearing E of sufficient length to secure steadiness of rotation of the wheel. This bearing is on an arm of the frame D. The wheel is so situated on the frame that by the swinging of the latter it can be brought around with its periphery in contact with that of the wheel or roller 0 and with its supporting-shaft E parallel to the driving-shaftB. Rotation of the wheel or roller. 0 will then cause the wheel E to revolve as long as the two wheels remain in contact.

The wheel E is to be provided on its side opposite to its supporting-shaft E with a centrally-arranged device adapted to receive and hold the end of the pivot shaft or stud atone end of a bobbin, so that such bobbin will be compelled to rotate with the wheel.

The frame D is provided with an upright arm Diadapted to support the bobbin pivot stud or shaft at the other end of the bobbin,

sustaining the bobbin in the frame or of clutching the wheel and bobbin shaft or pivotstud together, as any of the well-known means for this purpose understood bythose familiar with bobbin-winding attachments or devices can be used. If desired, a washer can be.

placed at D around pivot D, so as to support the frame D clear of the table in its movements. This frame-pivot is situated below the end of the bobbin, away from the wheel E, so that the pull of the thread being wound on the bobbin will tend to swing the bobbin-carrying frame always in one direction. The thread or other material to be wound comes from the source of supply to the bobbin in such direction that its pull on the bobbin as the latter is rotated acts to keep the frame swung into such position that the wheel E will remain in contact with and be rotated by wheel or roller C. A l101iZO11-,

tally-swinging lever F on the plate A has one of its arms in position to engage an arm D on the frame I), so that as the lever is swung on its pivot the frame will be moved in a direction to carry the bobbin-rotating wheel E out of engagement with driving-wheel C. The other arm or end of lever F is in the track of the reciprocating bar G, supported on the table A and moving in a direction substantially at right angles to the lever and parallel to the driving-shaft B. The end of this bar, situated on the same side of the lever as the arm D on frame D, will, when the bar is reciprocated, engage and move the lever so as to swing the frame and disengage the two wheels 0 and E. The leverengaging end of the bar is guided by a guide lug or loop G 011 the table or plate A. At its other end the bar is pivotally connected with the lever I-l,

pivoted upon the horizontal pivot shaft or arm 11, attached to and extending out from the standard H in a direction substantially at right angles to bar G. J ournaled upon this pivot-shaft is the hub I of the worm gear-wheel I. On this hub, close beside the pivotal portion of the lever H, is a radiallyextending shoulder 1 As shown, the outer and inner ends of thisshoulder are connected by a spirallyarranged surface extending around the hub, so as to make a sort of cam; but such construction is not necessary.

Pivoted to the upper end of the lever H on the same side thereof as hub I is the swinging pawl-lever 1 having a lug or projection 1 adapted to be positively engaged by the shoulder I on the hub I, so as to cause the upper end of lever I to be moved as the hub is rotated to carry the shoulder upward, as shown in Fig. 2.

with the frame-arm D to swing the bobbincarrying frame, so as to disengage the wheels 0 E and check the rotation of the bobbin. To bring about this action of the shoulder I 011 the pawl-lever l at the time when a certain predetermined amount of thread or other malhe lever I is then swung in adirect-ion to carry the bar G against lever, F, and through the engagement of this levelterial has been wound upon the bobbin, the hub carrying the shoulder can be rotated by means of a roller or wheel, around which the thread or material is passed on its way to the bobbin.

Journaled in the two uprights K K, so as to be capable of longitudinal movementwith reference thereto as well as rotation, is the shaft K at right angles to the shaft-supporting hub 1. Upon this shaft, between the two supporting-uprights is the worm K engaging the geanwheel I. The worm and shaft are so connected together, as shown in Fig. 6, that the two must rotate together; but the shaft can be moved longitudinally through the worm. The connection I prefer to make by means of a lug or key K engaging a groove K in the shaft. Instead of this arrangement and construction, the shaft and the shaft-opening in the worm can be made correspondingly angular in cross section. The outer end of the shaft is journaled in or passes through two uprights L L, attached to or carried by a slide L, guided on the table A, so as to be capable of movement to and from the worm K For the purpose of guiding the slide I make a dovetailed groove L in the table and make the slide to fit it. Fixed on the worm-carrying shaft between the two uprights is the conical roller If, around which. the thread or other material is passed on its way to the bobbin being wound. A screw L having its outer end swiveled or journale'd in a bracket-arm L and its inner end tapped through a lug L on the slide L serves to adjust the slide and the roller L longitudinally to bring the part of the roller which is of the desired diameter in the track of the thread passing to the bobbin. As shown in Fig. 2, this screw is provided at its outer end with a crank by which it may be turned, and with a collar L adapted, in conjunction with the hub or attaching portion of the crank, to so engage the bracket-arm between them as to prevent longitudinal movement of the screw, while leaving it free to be rotated. Instead of this construction, one end of the screw could be swiveled to the slide, while its other end could be tapped through a nut or head on the bracket L as shown in Fig. 5. The thread or other mate rial to be wound passes from any suitable source of supply to and around the pulley M, thence around the roller L and to the bobbin, to which it is fastened in the usual way. \Vith this arrangement, as the bobbin is rotated to wind the thread thereon, the conical roller will be turned by the passage of the thread so as to rotate the shaft K and, through the worm-gearin g shown and described, the h uh I, carrying the shoulder l for .roller.

.passage of a greater or less amount of thread will be needed to turn the roller-shaft a given number of times I according as the thread passes around a larger or smaller part of the By means of the screw-and-slide arrangement set forth the roller L can be adjusted longitudinally, so as to bring part of any desired diameter in position for the thread to pass around it on its way from the guide-pulley M to the bobbin.

With theconstruction and arrangement of parts described the conical roller can easily and readily be adjusted at will, so as to bring into position for the thread to pass around it the portion of the roller of the proper diameter to allow the passage of the desired amount of thread to the bobbin before the shoulder I on the hub I will engage the pawl-leverl and, -through the connecting mechanism described hereinbefore,swing the bobbin-hold ing frame to disengage the bobbin-rotating Wheel from wheel 0 driving it. For, convenience sake I contemplate providing the'slide with a pointer or index-finger N, and the plate A-with an index-scale 0 so graduated with reference to the finger, the slide, and the conical roller as to indicate the different positions ofthe slide necessary for securing the winding of thcdifferent predetermined lengths of thread on a bobbin. 7

here the bobbin-winder mechanism is used ineonnection with a boot or shoe sewing maohin e, the scale can be numbered or its divisions marked in any de sired way to indicate eitherthe different lengths of thread or the different sizes of sole forsewing, which suitable amounts of thread will be wound as the index hand or pointer is brought opposite the marks on the scale, 7

Where the bobbin-winding mechanism is used in connection with. other machines or to, wind certain predetermined amounts of any material on a bobbin reel or roller, the scale can, of course, be changed to suit the different circumstances, its divisions being relatively arranged and marked as desired.

The operation of my bobbin-winding mechanism, which will be readily understood, is

briefly as follows: With the conical roller adj ustedso as to bring the part of the roller of the desired diameter in position in the track of the thread fromthe pulley M to the bobbin the thread is passed around the roller and its end is fastened to the bobbin. The

pawl-lever is then tripped to disengage it,

from the shoulderor lug on the worm-wheel hub. 1, and the bobbin-bearing frame is swung winding proceeds the thread passing around the roller L rotates it, the shaft, the worm K,

the worm-wheel I, and the hub I until the shoulder I on the latter comes upagainst the lug or shoulder on the pawl-lever 1 The movement of the pawl-lever by the shoulder on the hub thenswings lever G, so as to reciprocate bar F, and through lever D swings the bobbin-carrying frame to disengage wheel E from its driving-wheel O. The desired amount of thread having been wound upon the bobbin and winding being stopped, the thread can be out between the roller and the bobbin, and the latter can be .removed from the winding-frame and another put in its place.

With: my bobbin-winding mechanism, as described, abobbi n can be wound with the requisite amount of thread while the machine is being used to sew a sole, so that when the bobbin in the shuttle is used up the newlywound one is ready to be taken at once and inserted in the place of the spent one, ready for the sewing of another sole.

In order. to insure that the exact amount of thread desired shall be wound upon the bobbin, I prefer to actuate'the shifting and stopping devices for the bobbin-holder by means of the thread as it passes to the bobbin rather than by the thread after it is Wound on the bobbin.

WVhere the accumulation of thread upon the bobbin is relied upon to operate the bobbin-holder shifting or stopping mechanism in order toget, any regularity in the amount of thread wound upon the bobbin during any one winding: operation, it is necessary that the winding, shall be done always evenly along the bobbin and that the thread. shall be of uniform thickness. Any irregularity in the winding of the thread on the bobbin or in the thickness ofthe thread obviously must cause irregularity in the winding operation. With my mechanism there can be no such irregularity, for the stopping of the bobbin-holder is caused only by .the passage of a certain predetermined length of thread to the bobbin. The action of the holderstopping device is then independent of any irregularity in the winding of the thread upon the bobbin or change in its thickness.

Having thus described my invention, what I claim is 1. .In combination with a bobbin holder and means for rotating the same, a movable piece moved by the thread on its way to the bobbin in the holder and a shifting device for vIIO throwing the holder-driving mechanismout of action, connected with and operated by the movable piece, substantially as and for the purpose specified.

2. In combination with a rotary bobbin holder and the driving mechanism therefor,

a roller in contact with the thread on its way 3. In combination with a bobbin-winding mechanism and a roller driven by the thread as it passes to the bobbin, means for throwing the winding mechanism out of operation,

connected with the roller, so as to be actuated thereby, substantially as and for. the purpose set forth.

4. In combination with a moving driving part, a bobbin-holder provided with a wheel to engage and be driven by the moving driving part and an automatic shifter for shifting the wheel out of engagement with the driving part and a movable part connected with the shifter, so as to operate it, actuated by the thread passing to a rotating bobbin in the holder, substantially as and for the purpose described.

5. In abobbin-winding mechanism, in combination with a movable frame, the bobbinholder thereon provided with a wheel, a rotary wheel to engage the holder-wheel when the frame is moved in one direction, a roller around which the thread passes on its way to the bobbin, and connections between the roller-shaft and the bobbin-holder frame for moving the latter to disengage the holderwheel from the driving-wheel when the roller has made a certain number of revolutions, substantially as and for the purpose shown.

6. I11 combination with the swinging frame, thebobbin-holder thereon provided with a wheel, and a wheel for driving the holderwheel, the lever engaging an arm on the frame, the reciprocating bar, the pivoted 1ever connected with the bar, the pawl on such lever, the rotary hub having the shoulder to engage the pawl, the roller around which the thread passes on its way to the bobbin, and connecting-gearing between the roller-shaft and the shoulder-carrying hub, substantially as and for the purpose set forth.

7. In combination with a rotary drivingwheel, a swingingframe carrying the bobbinholder provided with a wheel adapted to be brought into and out of engagement with the driving-wheel by the swinging of the frame, a guide-roller around which the thread passes to the bobbin, a conicallongitudinallyadjustable roller around which the thread passes on its way to the bobbin, and connecting mechanism between this roller and the swinging bobbin-holder frame whereby a certain number of revolutions of the roller causes the frame to be moved to disengage the holder-wheel from the driving-wheel, substantially as and for the purpose described.

8. In a bobbin-winding mechanism, in combination with the rotary bobbin-holder and the swinging frame carrying the same, the longitudinally adjustable conical roller around which the thread passes on its way to the bobbin, the worm on the roller-shaft, the worm-wheel, the shoulder or lug carried around by the rotation of the wheel, the 1e ver, the pawl thereon, the bar connected with such lever, and the pivoted lever engaged by the bar and engaging-an arm 011 the bobbinholder frame, substantially as and for the purpose specified.

9. Ina bobbin-winding mechanism, the means for insuring a movement of the bobbin-stopping devices when a given amount of thread has been wound, consisting of the conical roller in the track of the thread of the bobbin, means for adjusting the roller longitudinally, a worm on the shaft of the roller, a worm-wheel meshing therewith, a shoulder or lug on the hub of the wheel, a lever, and apawl on such lever adapted to be engaged by the shoulder on the wheel-hub, so as to swing the lever, substantially as and for the purpose shown. I

In testimony that I claim the foregoing I have hereunto set my hand this 6th day of December, 1888. I

CHAS. M. MILLER, 7. II. BALL. 

